Water-cooled display-type matrix-holder for monotype casting-machines.



E. W. FABRY.

WATER COOLED DlSPLAY TYPE MATRIX HOLDER FOR MONOTYPE CASTING MACHINES.

APPLICATION FILED MAY 29 19l6.

1 27 156 1 Patented Sept. 3, 191.8.

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Specification of Letters Patent.

Patented Sept. 3, 191%.,

Application filed. May 29, 1916. Serial No. 100,573.

To all whom it may concern:

I Be it known that I, EMIL W. FABRY, a citizen of the United States ofAmerica, residing at Birmingham, in the county of Jefferson and State ofAlabama, have invented certain new and useful Improvements inWa-tenCooled Display-Type Matrix-Holders for Monotype Casting-Machines,of which the following is a specification.

My invention relates to a display type ma trix holder for monotypecasting machines in which, by means of a centering pin, the matrix isclamped against the mold opening while the pump fills the mold withmolten metal to form the type.

The present matrix holders for display type in monotype castingmachines, after several type have been cast, become hotter than the molditself which forms the sides or bodyof the type, as provision hasheretofore been made for a water cooling sys tem for keeping down thetemperature of the mold, but no provision has been made for cooling thedisplay type matrix holder and as a result I have found that the speedof the casting machine is governed by the time required for the face ofthe type to cool. As the matrix base back of the holder rapidly becomeshighly heated it will be obvious that the slow cooling of the type facewill necessitate a. very slow operation of the machine, because if thetype face is ejected when too hot it will bulge out in the middle orbreak open.

The object of my invention is to greatly increase the output of monotypecasting machines employed in the manufacture of display type and this Iaccomplish by providing a display type matrix holder having a watercourse or duct in the matrix base or like part against which the displaytype matrix rests when clamped in the holder. Preferably this watercourse is caused to pass around the centering pin cone hole as by thisarrangement it will more effectively and uniformly cool the wholematrix.

In adapting my invention to the present mo'notype display type matrixholders, the water inlet and return courses are preferably drilledthrough the base plate and then by connecting drill holes plugged attheir open ends, the water is caused to flow on all sides around thecone hole and pass off, a regulating valve being provided to restrictthe flow of water and prevent the matrix base becoming sufficientlychilled to cause the matrix to frost the type face. The waterconnections will not interfere with the normal use of the display typematrix holder as the latter is not shifted laterally in service but ismerely raised and lowered relatively to the mold.

illustrative of my invention, but without intending to limit myself tothe details of construction shown, reference is had to the accompanyingdrawings, in which:

Figure 1 is a bottom plan view of a display type'matrix holder formonotype casting machines with the water course indicated in dottedlines.

Fig. 2 is a partial perspective view showing a display type matrixmounted in the holder.

Fig. 3 is a detail sectional View on, the line 3-3 of Fig. 1.

Similar reference numerals refer to similar parts throughout thedrawings.

I have illustrated my invention as applied to a display type matrixholder of well known construction in mono-type casting machinescomprising a metallic base plate 1 having near its center a shoulderforming the matrix base 2. Matrix clamps 3 are suitably mounted andcontrolled by mechanism (not shown) this is operable by the lever at.This mechanism is disposed between the base plate and a top plate 5which is connected by screws to the base plate. In Fig. 2 anillustrative display type matrix 6 is shown held by the clamps 3 againstthe matrix base 2 in position to be mounted over the mold (not shown). Idrill two water circulation holes 7 and 8 from near the handle end ofthe base plate 1, the holes being directed diagonally toward the plug 9in which is formed the centering cone hole for the matrix holder.Through the back of the matrix holder I drill a diagonal hole 10 intoths matrix base 2 so as to intersect near its outer end the hole 7 andto intersect also at its inner end a transverse circulation passage 11formed by a hole drilled transversely crosswise of the base 2 near itsface which engages the matrix. The open end of this passage is closed bya plug 11. This hole 11 at its left hand end, Fig. 1, merges into a hole12 drilled diagonally through the matrix base 2 and having its open endclosed by a plug 13. This hole 12 at its inner end intersects a hole letdrilled diagonally from the other side through the matrix base 2 andwhich is closed at its open end by a plug 15.

These several drill holes pass substantially angularly about andequi-distantly from the centering cone hole plug 9. A second hole 16 isdrilled diagonally through the back face of the matrix holder so as topass over the drill hole 11 and connect with the plugged drill hole 14.The outer ends of these drill holes 10 and 16, which open out throughthe back of the matrix base are kept separate and are closed by means ofa plate 17 welded or otherwise attached to the back of the holder, or,if desired, the outer ends of these holes may be plugged. A water inletpipe 18 connects with the drill hole 8 and a water outlet pipe 19connects with the drill hole 7 and I provide a valve 20 to control theflow of the circulating water through the water course in the matrixbase. The waterhaving been turned on to the desired extent willcirculate through the matrix base passing on all. sides of the centeringplug 9 and will chill the matrix base so that it will lgeep the displaytype matrix mounted thereon sufliciently cool to permit the casting operation to be carried on as rapidly as thecooling of the type bodieswill permit.

With my invention I find that by regulating the flow of water throughthe water course in the matrix base, I can keep the dislay type matrixitself as cool as the mold and therefore the speed of operation of themachine can be almost doubled as compared with present practice withoutin the least affecting the excellent quality of the display typeproduced.

It will of course be understood that the water course may be otherwisearranged, but that described can be readily provided in the present typeof display type matrix holders with but little expense. 7

My present invention is concerned only with the improvement of displaytype matrix holders and not with composition matrix cases.

lVithout intending to limit myself to the details of construction shown,what I claim as new and desire to secure by Letters Patent, is

In a display type matrix holder for monotype casting machines, a baseblock having a central enlargement forming a matrix base, a cone holecentering plug mounted in said base, there being water inlet and out--let passages leading from the margin of the block to the matrix base,there being drill. holes leading from the back of the block at differentangles and intersecting each one of said first mentioned passages, andthere being transverse drill holes passing at intersecting anglesthrough the-matrix base and near the matrix supporting surface thereof,said transverse drill holes forming a circuit that connects with theends of said inlet and outlet passages to form a closed'circuit, andmeans to close the outer ends of said holes drilled through the block,substantially as described.

In testimony whereof I aflix my signature.

EMIL W. FABRY.

Witness NQMIE WE s Gopies of this patent may be obtained for five centseach, by addressing the Commissioner of Iatents, Washington, D. G.

